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Chemical and Process Engineering |
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A S Jessup-Bould: Gasification and Pyrolysis Experience |
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Over the years I have undertaken process design
work for many gasification plant proposals, including pyrolysis plant. Until
now, the economics of many projects investigated have prevented them from
becoming realised. Despite this, I have not been without practical
experience of their operation, including co-ordination of oxygen blown trials
on a full size coke gasifier which was one of my
most rewarding engineering experiences. I have also worked briefly as a
support operator during trials of the, semi-commercial size, CRE (Coal
Research Establishment) fluidised bed coal
gasification pilot plant. I have also had the benefit of feedback from the
operation of pyrolysis units working on sewage sludge and wood. More recently I have worked on projects for the
sub-stoichiometric combustion of municipal and hazardous wastes using
multiple batch filled chambers configured for sequential operation, thus replicating
continuous operation. This has included co-ordination of trials and gas
sampling for mass-balance determination on a demonstration plant. |
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Aspects of Gasification |
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Batch Sequential Chambers. |
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Rotating externally heated drum. |
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Fixed bed; air blown / oxygen blown. |
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Spouted fluidised bed of char or inert material; air blown / oxygen enriched air blown. |
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